Device for rinsing and applying a. suction action to washing



y 3 E. EBERHARD ,8

DEVICE FOR RINSING AND APPLYING A SUCTION ACTION T0 WASHING Filed March 5, 1930 2 Sheds-Sheet 1 1%" 19 July 5, 1932. E. EBERHARD 1,866,193

DEVICE FOR RINSING AND APPLYING A SUCTION ACTION T0 WASHING Filed March 5, 1930 2 Sheets-Sheet 2 Patented July 5, 1932 I ERNST EBERHARD, OF OERLIKON, NEAR" ZURICH, SWITZERLAND DEVICE FOR RINSING AND APPLYING A SUCTION ACTION 'IO WASHING Application filed March 5, 1930, Serial No 433,359, and in Switzerland April 2, 1929-5 Devices for rinsing and applying a suction action to washing by means of an'upwardly and downwardly moving hood divided into chambers, i. e. so called washing 5 stamping or pounding devices, are well known, said devices being provided witha non-return valve between the hood chambers and with a series of lateral openings in the hood.

In the device according to the present invention there is provided as non-return valve 3. plate valve subdividing the hood and con sisting of at least a single part, said valve closing the lateral openings with its rim when inserting the device into the washing liquid.

Examples of construction of the subject of the invention are illustrated in the accompanying drawings wherein: F 7

Figs. 1 and 2 show two constructions of devices for hand operation in vertical-section, 7

Fig. 3 shows a construction of a device for power'operation also in vertical section;

Fig. 4 shows a detail of Fig. 3, I I

Fig. 5 shows a further form of construction of the device in vertical section. v

In the example of construction according .to Fig. 1, 1 indicatesthe bell-shaped hood provided with three chambers 2, 3 and 4. Between the chambers 2 and 3 is secured a ribbed bottom 5 provided with holes, which serves as a support for one plate 6 of a twopart valve formed as a plate valve and at the same time preventsthe washing from entering the hood. The valve plate 6 is pro vided with a downwardly bent rim 7 which projects into a water gutter formed between a downwardly bent portion 8 ofthe bottom 5 and the wall of the hood 1. The valve plate 6 is provided with an opening 9 which is covered by the upper valve plate 10 of the valve resting on the lower plate 6. The plate 10 isguided by the pins 10. The rim 7 of the valve plate 6 closes-the series of lateral holes 11 of the hood when inserting the device into the washing liquid which passes through the valve for filling the hood.

Between the chambers 3 and 4 thereis provided as air valve a valve provided with) a valve plate 12 connected "by a connecting member 13 to a floating body 14:. The horizontal portion'of the connecting member' 13 passes through slots 15 in the upper exten- I, sion 16 of the hood and can move up and 66 down in these slots. The valve plate 12 rests on an apertured seating plate 17 which closes the lower end of a cylindrical carrier 18 secured in the upper end of the hood 1. The valve plate 12 can not close all the aper- 6o tures of the valve seat plate 17. For this purpose there is provided a furtherplate 19, having apertures 22 adapted to be closed by the valve plate 12 andrigidly connected to the plate 10 of the non-return valve su'bdividing the chambers 2, 3. A cylindrical rim 19' of the plate 19 is guided on the carrier 18. In the conical portion 19 of the extension 16 is secured the handle 20. f The method of operation of the machine described is-as follows: I

When the device is moved downwardly into the washing liquid the non-return valve, formed by the plates 6 and 10, is moved upwardly, and the rim 7 closes the openings 11 and the plate 6 rests in its upper position against a flange 21 of the hood. The plate 19 of the air valve is pressed against the valve seat plate 17 and the air valve is thus closed.

When the hood has been forced downward- 8 1y into the washing liquid to such an extent that the float body 14 is submerged the valve plate 12 is lifted by this body and the air valve thus opened. The air which is compressed under the hood by such downward movement of the hood can now escape suddenly and the washing liquid flows comparatively rapidly into the hood, thus passing energetically through the washing located under the, hood. The washing liquid is prethe washing. By the closing of the valve 6,

10 the valve plate 19. opens the air valve so that the washing liquid in the hood can flow out through the openings .11 and be spread over the washing in the form of a spray.

The arrangement according to Fig. 1 may be used in combination with a friction basket constructed as a friction surface and fittedinto the washing vessel as illustrated in Fig. 3.

The example of constructionaccording to Fig. 2 difiers from that above described in that the hood is divided by a two part valve intotwo chambers 2 and .3. The valve is again provided with a lower plate 6, with a rim which. closes a series of lateral holes ll wheninserting the device into the washing liquid, the washing liquid flowing through the non-return valve when filling the hood. The opening 9 in the plate 6 is closed by a plate 10 of. which the stroke is limited by stops 10.

In the extension 19 of the hood there is provided a lateral opening 26 with which there communicates a bore 27 in the handle 20. The air can escape through the bore 27 and opening 26' from the hood during the down strokeofthe latter and reversely air can enter therethrough into the hood during the upward movement. By means of the screw 28 and the valve disc 29 the cross sectional passage area for the air can be adjusted. If the passage is completely closed the air can not escape when inserting the device and when lifting the latter exerts an upward force thus reducing the power required to lift the device. If however, the passage is opened, the upper chamber 3 is utilized during the insertion that is to say it isfilled with washing liquid which can only enter this chamber from the bottom by passing through the washing. During the lifting a rapid emptying of the contents of the chamber 3 through the openings 11 occurs as air enters through the bore 27. Any suit-able formof vent valve may be provided.

The example of construction according to Fig. 3 is for power drive. The hood 1 is of cylindrical. shape: and is divided by valves into chainbers'2', 3, 30 and 31. Between the chambers 2 and 3, there are provided the same elements as in the first example of construction, that is to say there is again provided an apertured bottom, secured to the'hood 1, and a two part valve having valve plates 6 and 10 resting upon one another, through which the washing liquid passes for filling the hood, while the rim 7 closes the lateral openings 11 when inserting the device. Between the chambers 3, 30 and 31 are fitted valves, similar to the valve 6, 10, but with the difierence that the plates 33 and 36, corresponding with the valve plate 10, are provided with members 34 and 40 acting as air shafts. The valve plates32 and 32 close with their downward ly bent edges the series 39 and 43 of lateral openings when inserting the device into the washing liquid. The valve plates 6, 32 and 33 are connected together by rods tl so that they open and close together. The rods 11 are fitted into an apertured floating body 42 so that when inserting the device into the washing liquid all the Valve plates are liftedand the openings 11, 39, 43 closed. At the top the cylindrical hood is closed by an apertured member 4A which carries the sleeve for the reception of the handle; 16 are stiffening stays.

The method'of operation of this device is similar to that of the previous examples. The members 34 and 40 serve to conduct air rapidly into the chambers 30 and 3 so that the outflow of washing liquid from the chambers 31, 30 and 3 can be efiected simultaneously through the apertures 11, 39, and 13 and not first from the chamber 3, then from the chamber 31 and finally from the chamber 30, which would be the case if these air shafts were not provided.

By reason of the large volume of the device alarge quantity of washing liquid is supplied through the washing into the hood andpassed over the washing from the hood when inserting and lifting the device. The washing output is consequently correspondingly higher and more rapid, but requires more power which, however, is of less importance with a motor drive.

In Fig- 3 a friction basket 18 is fitted into the washing vessel 47 and by means of a downwardly bent rim rests loosely on the edge of. the washing vessel and can thus be easily removed. The basket is constructed as a friction surface withprojections and recesses, and with holes (see Fig. 4) in order to allow the washing liquid to pass through the friction basket. At the bottom the friction basket is provided with an upwardly directed elevation 50 by means of which the washing is pressed 'into the chamber 2.

In the example of construction according to Fig. 5, 1. again indicates the hood, of which the upper portion is funnel-shaped. The parts indicated by 210 correspond substantially with the similarly indicated parts in Fig. 1. i

In order to prevent a too early opening of the valve 6, 10 there is guided within the chamber 2 of the hood .1 a further hood 51 which in the lowermost position shown in the drawings projects beyond the edge of By the action of the spring 55, which is assisted by the weight of the hood 51 and the parts connected to the latter, the plate valve 6, 10 is pressed against the bottom 5 and this valve is prevented from opening until on inserting the device the hood meets the washing and is thus raised into its upper position indicated by chain dotted lines in the drawings.

The plate valve 6, 10 can now be raised by the pressure of liquid and the washing liquid flows into the chamber 3. When the valve plate 6 is lifted the slides 58 are raised into their upper position in which they close the openings 57. When moving the device downwardly, the same serves to force suds downwardly through the clothes.

When lifting the device the hood 51 moves downwards under'the actionof the spring 55 and holds the non-return valve 6, 10 which immediately closes, in vthe closedposition, thus trapping suds in the chamber .3 and exposing the openings 11 so that the suds in the chamber 3 can pass out, and be discharged downwardly on the clothes. As

soon as the valve 6, 10 is closed the slides 58 move downwards'under the action of the weight of the segments 60 and open the air holes 57 Air enters and facilitates a rapid emptying of the contents of the chamber 3. In order to prevent the liquid being spread unduly, and hence passing radially above the clothes during this rapid emptying the segments 6O serve as spray breakers. The rim 61 serves to divert the spray downwardly on the clothes.

As the lateral. openings are closed when inserting the device and'all the washing liquid is compelled to pass from the bottom through the washing into the hood there is obtained a better washing action than is the case with known washing devices of this character.

What I wish to claim and secure by S. Letters Patent is:

A suction pounder comprising a hood having a perforated diaphragm dividing the same into lower and upper chambers, said diaphragm having an annular Wall spaced from the wall of the hood and forming a gutter therebetween and said hood having openings abovethe diaphragm, a vertically movable plate on the diaphragm having a depending flange movably fitted in said gutter and also having an opening at a point above the diaphragm, a valve plate on the first mentioned plate and connected thereto for vertical movement, and said hood having stop means above the openings to limit the vertical movement of the flange plate, the flange of said plate serving during its upward movement to cover the openings in the hood.

In testimony whereof I aflix my signature.

ERNST EBERHARD. 

